Audiphone.



N. R. GORDON.

AUDIPHONB.

APPLICATION FILED MAY 23, 1914.

1 1 30 81 2. Patented Mar. 9, 1915.

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NOEL R. GORDON, 0F SPRINGFIELD, ILLIEOIS.

AUDIPHONE.

Specification of Letters Patent.

Patented Mar. 29, 1935.

Application filed May-23, 1914. Serial No. 840,450.

To all whom it may concern:

Be it known that I, NOEL R. GORDON, a citizen of the United States, residing at Springfield, in the county of Sangamon and State of Illinois, have invented certain new. and useful Improvements in Audiphones, of which the following is a specification.

The invention is designed as an aid to hearing by partially deaf persons, and the purposes of the invention are to provide means for excluding extraneous and distracting sounds and concentrating and refleeting the sounds which it is desired to so that the concentrated sounds will enter directly into the auditory canal of the ear; and to provide means whereby the inner end of the trumpet or sound-conveying tube may be adjusted relative to the auditory canal of'the ear, in such position as the user may find most effective in each particular case.

With these'ends in view my invention consists in the novel features of construction and combinations of parts shown in the drawing and which will be hereinafter described and finally recited in the claim.

Figure l is a front elevation, partly in section, of an audiphone embodying my invention; Fig. 2 is a vertical transverse section on the. line X. X. of Fig. l; and Fig. 3 is an oblique section on the line Y. Y. of Fig. 1.

Similar reference numerals designate like parts in the different views.

The audiphone comprises a dome like body 1, preferably of hard rubber orpo'rcelain, shaped to surround and inclose the ear of the user; and a trumpet or sound collector 2 preferably of aluminum or other light metal adjustably mounted on the body 1 and detachably connected therewith. The body 1 has an annular boss 3 having a central circular opening 7 and provided with an internal circular groove 4:, and diametrically opposite entrance notches 5.

The outwardly extending part of the sound collector 2 is flared as shown, and its central part 6 is circular and is fitted to rotate in the circular opening 7. Diametrically opposite lugs 8 on the central part 6 of the sound collector are adapted to freely traverse the entry notches 5 and fit snugly in the circular groove 4, so that if the sound collector be partially rotated and stopped the frictional contact of the lugs 8 with the walls of the groove 4 will hold the tube in its rotated position.

The inwardly extending tube 9 of the -sound-collector is positioned as shown, so

. auditorycanal to place the tubeinsuchpo- ,sitmn as the usermay find most advantageous for convenient and effective use of the instrument.

The body 1 completely incloses the ear and serves to exclude distracting noises, and its dome shape interior constitutes an air chamber in which the volume or" sound en tering through the tube 920i the sound collector 2 is amplified and by, reason of the shape' o'f the iiiteribr wall of the dome the sound is reflected without vibration and is centralized at the mouth of the auditory canal thereby attaining the most efi'ective use of the instrument.

In cases of mild deafness-the trumpet or sound collecting tube may be dispensed with and the dome shape main structure alone may be used both for receiving and conden-sing the sound.

Having fully described my invention what I claim as new and desire to secure by Letters Patent is:

In an audiphone, in combination with a main structure having a dome-shape cham- 9o ber,a circular lateral opening and a boss surrounding said lateral opening and pro vided with a circular groove and entrance notches communicating with said groove; a flared sound collector rotative in the lateral opening of themainstructure and having a reduced part providedwith "'an'a'urzil openingysa'i'd sound collector also having lugs adapted to enter the notches in the bossof the main structure and adapted to engage'loo on the walls of the circular groove of said boss, to hold the sound collector in variable positions onnthe main structure.

In witness whereoilhave hereunto signed my name at Springfieldfl llinois, this 4th day of April 1914.

NOEL R. GORDON.

Witnesses:

BnNJ. RICH, CHAS. S. WANLESS.

Copies ot this potent may be obtained for five cent: each, by addressing the commissioner of Patents,

Washington, D. 0." 

